Raws li txoj cai, lub hom ntawm cov cement yog txiav txim siab los ntawm kev tsim tshwj xeeb ntawm kev ntim khoom. Txawm li cas los xij, hauv qee kis, piv txwv li, thaum tsis muaj ntim khoom lossis nws puas ntsoog, nws yog qhov ua tau los txiav txim siab cov hom ntawm cov khoom siv cement sim.
Tsim nyog
- - Cov cement;
- - xuab zeb;
- - dej;
- - cov ntaub ntawv tshwj xeeb rau cov cement;
- - hau;
- - muab ntaub nplaum;
- - tes taw hnyav nrog cov qauv hnyav.
Cov Lus Qhia
Kauj ruam 1
Sib tov cov cement mortar siv cov xuab zeb txheem. Qhov piv ntawm cov cement thiab xuab zeb yuav tsum yog 1: 3. Qhov sib tshooj ntawm cov dej-xis piv yuav tsum yog yam tsawg kawg 0.4 (piv txwv li, 400 g dej poob ntawm 1 kg ntawm cement).
Kauj ruam 2
Los ntawm cov txiaj ntsig cov cement mortar, hliv rau cov ntawv tshwj xeeb, 4x4x16 cm qhov loj me.
Kauj ruam 3
Tso cov hnoos qeev rau hauv chav tshwj xeeb lossis npog nrog lub hood. Qhov tsim nyog ua ntej yog ua kom tau txais dej noo txaus. Ua li no, tso ib lub nkoj nrog dej nyob ib sab ntawm cov pwm. Tseg cov hnoos qeev nyob hauv qab ntawm lub kaus mom kom siav rau ib hnub.
Kauj ruam 4
Tshem tawm cov blocks ntawm daim formwork thiab muab tso rau hauv chav ua kom sov. Tom qab muab cub khov dua, xyuas lub flexural lub zog ntawm cov MAAs xeem tej daim. Txhawm rau ua qhov no, tso cov cement thaiv ntawm ob qho kev txhawb nqa. Qhov chaw nruab nrab ntawm lub thaiv yuav tsum nyob ywj pheej. Raws li qhov tshwm sim, tag nrho tus qauv yuav tsum zoo ib yam li tus choj impromptu. Tso tes taw hnyav li ib nrab rau hauv qhov thaiv. Qhov hnyav hauv qab uas qhov vias tsoo yuav tsum nco ntsoov. Kev siv tus lej tshwj xeeb no, nrog rau cov txheej txheem tshwj xeeb thiab coefficients, kev siv zaws thiab cov qib cement yog txiav txim siab. Txhua lub cim tau nws tus kheej cov mis.
